ABAP Select data from SAP table P2RS_SSKAT into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP P2RS_SSKAT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to P2RS_SSKAT. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the P2RS_SSKAT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_P2RS_SSKAT TYPE STANDARD TABLE OF P2RS_SSKAT,
      WA_P2RS_SSKAT TYPE P2RS_SSKAT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <P2RS_SSKAT> TYPE P2RS_SSKAT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_P2RS_SSKAT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM P2RS_SSKAT
  INTO TABLE IT_P2RS_SSKAT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM P2RS_SSKAT
*  INTO TABLE @DATA(IT_P2RS_SSKAT2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_P2RS_SSKAT INDEX 1 INTO DATA(WA_P2RS_SSKAT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_P2RS_SSKAT ASSIGNING <P2RS_SSKAT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<P2RS_SSKAT>-MANDT = 1.
<P2RS_SSKAT>-DCT_PERNR = 1.
<P2RS_SSKAT>-DCT_SEQNR = 1.
<P2RS_SSKAT>-DCT_ROWID = 1.
<P2RS_SSKAT>-CNTR2 = 1.

ENDLOOP.

LOOP AT IT_P2RS_SSKAT INTO WA_P2RS_SSKAT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_P2RS_SSKAT-BEGDA, sy-vline,
  WA_P2RS_SSKAT-ENDDA, sy-vline,
  WA_P2RS_SSKAT-OBJPS, sy-vline,
  WA_P2RS_SSKAT-TTYPE, sy-vline,
  WA_P2RS_SSKAT-LANKD, sy-vline,
  WA_P2RS_SSKAT-KOMKD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_P2RS_SSKAT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_P2RS_SSKAT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_P2RS_SSKAT INTO WA_P2RS_SSKAT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_P2RS_SSKAT_STR, 
MANDT TYPE STRING,
DCT_PERNR TYPE STRING,
DCT_SEQNR TYPE STRING,
DCT_ROWID TYPE STRING,
CNTR2 TYPE STRING,
BEGDA TYPE STRING,
ENDDA TYPE STRING,
OBJPS TYPE STRING,
TTYPE TYPE STRING,
LANKD TYPE STRING,
KOMKD TYPE STRING,
FORKD TYPE STRING,
TADKD TYPE STRING,
TABKD TYPE STRING,
TAKKD TYPE STRING,
TRUKD TYPE STRING,
TYPKD TYPE STRING,
TYPEC TYPE STRING,
VCDAM TYPE STRING,
TCURR TYPE STRING,
TAETT TYPE STRING,
SKADP TYPE STRING,
SKADA TYPE STRING,
SKADL TYPE STRING,
ACURR TYPE STRING,
SKETP TYPE STRING,
SKETA TYPE STRING,
ECURR TYPE STRING,
IPEPC TYPE STRING,
IPEPP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_P2RS_SSKAT_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_P2RS_SSKAT_STR-MANDT sy-vline 
WA_P2RS_SSKAT_STR-DCT_PERNR sy-vline 
WA_P2RS_SSKAT_STR-DCT_SEQNR sy-vline 
WA_P2RS_SSKAT_STR-DCT_ROWID sy-vline 
WA_P2RS_SSKAT_STR-CNTR2 sy-vline 
WA_P2RS_SSKAT_STR-BEGDA sy-vline 
WA_P2RS_SSKAT_STR-ENDDA sy-vline 
WA_P2RS_SSKAT_STR-OBJPS sy-vline 
WA_P2RS_SSKAT_STR-TTYPE sy-vline 
WA_P2RS_SSKAT_STR-LANKD sy-vline 
WA_P2RS_SSKAT_STR-KOMKD sy-vline 
WA_P2RS_SSKAT_STR-FORKD sy-vline 
WA_P2RS_SSKAT_STR-TADKD sy-vline 
WA_P2RS_SSKAT_STR-TABKD sy-vline 
WA_P2RS_SSKAT_STR-TAKKD sy-vline 
WA_P2RS_SSKAT_STR-TRUKD sy-vline 
WA_P2RS_SSKAT_STR-TYPKD sy-vline 
WA_P2RS_SSKAT_STR-TYPEC sy-vline 
WA_P2RS_SSKAT_STR-VCDAM sy-vline 
WA_P2RS_SSKAT_STR-TCURR sy-vline 
WA_P2RS_SSKAT_STR-TAETT sy-vline 
WA_P2RS_SSKAT_STR-SKADP sy-vline 
WA_P2RS_SSKAT_STR-SKADA sy-vline 
WA_P2RS_SSKAT_STR-SKADL sy-vline 
WA_P2RS_SSKAT_STR-ACURR sy-vline 
WA_P2RS_SSKAT_STR-SKETP sy-vline 
WA_P2RS_SSKAT_STR-SKETA sy-vline 
WA_P2RS_SSKAT_STR-ECURR sy-vline 
WA_P2RS_SSKAT_STR-IPEPC sy-vline 
WA_P2RS_SSKAT_STR-IPEPP sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.